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Accessibility to gases of dye molecules in hybrid surfactant-silica mesophases

Onida, B. ; Borello, L. ; Fiorilli, S. ; Barolo, C. ; Edler, K. J. LU orcid ; Otero Areán, C. and Garrone, E. (2004) In Studies in Surface Science and Catalysis 154(C). p.3010-3016
Abstract

Two types of CTABr-silica mesophases have been prepared, one of them a powder with hexagonal structure containing Congo Red, another one a film with cubic structure containing Disperse Red 1. In the former case the dye has been occluded via co-entrapping, whereas in the latter it has been covalently anchored to the silica matrix via a co-condensation route. In both systems, the dye molecules proved to be accessible to NH3, HCl and (CH 3)3N in the gas phase, notwithstanding the presence of micelles in the mesophase, which results to be fully permeable to such molecules.

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author
; ; ; ; ; and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
keywords
Dye, Hybrid mesophase, MCM-41, Optical sensor
host publication
Recent Advances in the Science and Technology of Zeolites and Related Materials
series title
Studies in Surface Science and Catalysis
editor
van Steen, E. ; Claeys, M. and Callanan, L.H.
volume
154
issue
C
pages
7 pages
external identifiers
  • scopus:11844287561
ISSN
0167-2991
DOI
10.1016/s0167-2991(04)80585-8
language
English
LU publication?
no
id
db2e71d8-8e3b-48a9-ba56-fd8dcdc69807
date added to LUP
2023-05-04 18:28:36
date last changed
2023-06-13 10:13:28
@inproceedings{db2e71d8-8e3b-48a9-ba56-fd8dcdc69807,
  abstract     = {{<p>Two types of CTABr-silica mesophases have been prepared, one of them a powder with hexagonal structure containing Congo Red, another one a film with cubic structure containing Disperse Red 1. In the former case the dye has been occluded via co-entrapping, whereas in the latter it has been covalently anchored to the silica matrix via a co-condensation route. In both systems, the dye molecules proved to be accessible to NH<sub>3</sub>, HCl and (CH <sub>3</sub>)<sub>3</sub>N in the gas phase, notwithstanding the presence of micelles in the mesophase, which results to be fully permeable to such molecules.</p>}},
  author       = {{Onida, B. and Borello, L. and Fiorilli, S. and Barolo, C. and Edler, K. J. and Otero Areán, C. and Garrone, E.}},
  booktitle    = {{Recent Advances in the Science and Technology of Zeolites and Related Materials}},
  editor       = {{van Steen, E. and Claeys, M. and Callanan, L.H.}},
  issn         = {{0167-2991}},
  keywords     = {{Dye; Hybrid mesophase; MCM-41; Optical sensor}},
  language     = {{eng}},
  number       = {{C}},
  pages        = {{3010--3016}},
  series       = {{Studies in Surface Science and Catalysis}},
  title        = {{Accessibility to gases of dye molecules in hybrid surfactant-silica mesophases}},
  url          = {{http://dx.doi.org/10.1016/s0167-2991(04)80585-8}},
  doi          = {{10.1016/s0167-2991(04)80585-8}},
  volume       = {{154}},
  year         = {{2004}},
}